Mask Interface - ResMed AirTouch F20 Full Face Mask with No Headgear Size:Small #63021 having extra battery power puts

having extra battery power puts more freedom at your disposal

Connect the Power Supply Adapter to the ResMed S9 power supply

and supportive foam

With this option

The Mask Interface - ResMed AirFit N10 Nasal mask with No Headgear is the original replacement for your mask

Mask Interface - ResMed AirTouch F20 Full Face Mask with No Headgear Size:Small #63021 having extra battery power putsThe Mask Interface ResMed AirTouch F20 Full Face Mask with No Headgear for your mask. The product is designed to be replaced on a regular basis to provide the best performance of your mask. Cushions available in 3 different sizes: Small, Medium And Large. This cushion is only compatible with the ResMed AirTouch F20 Full Face Mask. Returns on warranty issues only.